You first need to activate the Kaspersky product if you want to protect your device from any antivirus. You receive a product key code on the retail card or through email; you need to enter the code while trying to activate the product. However, in some situations, the product key does not work due to various reasons. One of the primary reasons to face this issue in your device is that the code is not activated yet. Hence, in the following content, you will learn some effective methods to fix this issue in your device.